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Home >> Chevrolet >> 2015 >> Spark EV >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Electric Converters and Controllers >> Hybrid/EV Control System >> Diagnostic Information and Procedures >> DTC P0AC4: Hybrid/EV Powertrain Control Module 1 >> Circuit/System Description

Circuit/System Description

This DTC indicates the hybrid/EV powertrain control module 1 has set a DTC. The hybrid/EV powertrain control module 1 sends a message via the serial data circuit to the ECM requesting illumination of the MIL. When the ECM receives the message, DTC P0AC4 will set. The DTC information for the ECM will only display DTC P0AC4, but the freeze frame/failure records data will display the hybrid/EV powertrain control module 1 DTC that is set.

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